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Recycling can avoid large quantities of greenhouse gas emissions. Image: © Fraunhofer UMSICHT
08.10.2024

Closing new loops with recycling

Recycling protects resources. This is confirmed by the latest study, which Fraunhofer UMSICHT prepared on behalf of Interzero. In 2023, the circular economy service provider avoided a total of 1.2 million tonnes of greenhouse gas emissions by recycling about 2.5 million tonnes of recyclable materials. At the same time, Interzero, together with its customers, was able to save over 11.1 million tonnes of primary resources.
 
To ensure that the transformation to a circular economy is successful, new cycles must also be established for material groups that have so far been given little consideration.
 

Recycling protects resources. This is confirmed by the latest study, which Fraunhofer UMSICHT prepared on behalf of Interzero. In 2023, the circular economy service provider avoided a total of 1.2 million tonnes of greenhouse gas emissions by recycling about 2.5 million tonnes of recyclable materials. At the same time, Interzero, together with its customers, was able to save over 11.1 million tonnes of primary resources.
 
To ensure that the transformation to a circular economy is successful, new cycles must also be established for material groups that have so far been given little consideration.
 
The recycling of raw materials is an effective lever for climate protection and ensures that Germany and Europe remain future-proof as places to live and do business. The study ‘resources SAVED by recycling’ proves that: Interzero was able to avoid a total of 1.2 million tonnes of greenhouse gas emissions in 2023 by recycling around 2.5 million tonnes of recyclable materials. At the same time, Interzero and its customers saved over 11.1 million tonnes of primary resources. Fraunhofer UMSICHT has been monitoring the environmental impact of recycling for Interzero for more than 15 years. The research institute's annual life cycle assessment proves the sustainable impact of recycling. ‘On the one hand, our studies provide a strategic basis for decision-making for sustainable action, and on the other hand, we also offer expertise in the process of transformation to a circular economy,’ explains Dr. Markus Hiebel, Head of Sustainability and Participation at Fraunhofer UMSICHT.
 
Textile recycling not yet well established
A complete transformation to a circular economy must include all material groups. Unlike packaging recycling, for example, textile recycling is still in its infancy: around 92 million tonnes of textiles are thrown away every year worldwide. So far, however, only one per cent of the material stream goes into fibre-to-fibre recycling and thus back into the production cycle.

Time is of the essence, because new EU regulations such as the separate collection requirement from 2025 or the planned extended producer responsibility (EPR) for textiles, as well as the German government's National Circular Economy Strategy (NKWS), are increasing the pressure to act.

‘When it comes to textiles as valuable materials, it is clear what enormous ecological potential lies in recycling – and why it is imperative to promote the circular transformation of the economy at all levels’, says Dr Axel Schweitzer, Chairman and Shareholder of Interzero. ‘This applies in particular to recyclable materials that are not yet consistently recycled. We want to work with the industry to close the textile loop and use our experience as an established system service provider to develop a holistic concept for take-back, sorting and recycling,’ emphasises Dr. Axel Schweitzer.

Plastics are an important component of textiles. Due to their property profile, plastics in particular are very important for the German economy and are being examined comprehensively in the Fraunhofer Cluster of Excellence Circular Plastics Economy CCPE, which is coordinated by Fraunhofer UMSICHT. Whether bioplastics, additives used for this purpose, compounding, or mechanical and chemical recycling, the Fraunhofer CCPE combines the expertise of six Fraunhofer institutes and industrial partners for the transition from a linear to a circular plastics economy. The entire life cycle of plastic products is considered.

Source:

Fraunhofer UMSICHT / Interzero

The Materials Market Report 2024 (c) Textile Exchange
30.09.2024

Materials Market Report 2024: Fossil-based synthetics dominate

Textile Exchange launched the first Materials Market Report in 2013 as a comprehensive, annual publication that provides unique data and insights into global fiber and raw materials production.

The Materials Market Report shares best available data on global fibre and material production volumes alongside program-specific volumes and other insights such as the number of certified sites. For the purpose of this report, leather, rubber, and down are considered non-fibre raw materials and are therefore included separately from the section and charts on ‘global fibre’.

Textile Exchange launched the first Materials Market Report in 2013 as a comprehensive, annual publication that provides unique data and insights into global fiber and raw materials production.

The Materials Market Report shares best available data on global fibre and material production volumes alongside program-specific volumes and other insights such as the number of certified sites. For the purpose of this report, leather, rubber, and down are considered non-fibre raw materials and are therefore included separately from the section and charts on ‘global fibre’.

It helps inform the textile industry’s efforts to reduce emissions associated with raw material production in line with a 1.5-degree temperature rise pathway. The report highlights the urgency to accelerate the transition to fibres from preferred sources, intensify efforts to significantly reduce reliance on virgin fossil-based materials, and invest in strategies that separate value creation from the need for extracting new materials.

It’s important to note that the compilation of global market data for fibres and raw materials is challenging and the quality of available data is often limited. The collection of primary data from suppliers is beyond the scope of this report so Textile Exchange relies on secondary data from industry associations, international organizations, governmental organizations, standard setters, and research institutes.

While Textile Exchange has collected, analysed, and compiled this information in all good conscience and has cross-checked it wherever possible, the report is intended for general guidance and information purposes only. Data gaps and inconsistencies are common in global market data, so modelling has often had to be applied.

Global fibre production reached an all-time high of 124 million tonnes in 2023, according to the latest Materials Market Report– which looks at total volumes used for apparel, home textiles, footwear, or any other application.

The data shows that the market share of virgin fossil-based synthetics continued to increase in 2023, with a decline in that of cotton and recycled fibres. Other key takeaways from the report’s data include:

  • Record fibre production: Despite industry efforts, global fibre production has more than doubled since 2000. The last year’s 124 million tonnes represents a 7% increase from 116 million tonnes in 2022, and is expected to rise to 160 million tonnes in 2030 if current trends continue.
  • Synthetics continue to dominate: The production of virgin fossil-based synthetic fibres increased from 67 million tonnes in 2022 to 75 million tonnes in 2023. Polyester remained the most produced fibre globally, accounting for 57% of total fibre production.
  • Recycled synthetics face challenges: Although recycled polyester fibre production slightly increased in 2023, the overall market share of recycled polyester decreased from 13.6% to 12.5%. For polyamide (nylon), the second most used synthetic fibre, recycled fibres constituted only 2% of the total market share. These trends are attributed to the lower prices and continued production of virgin synthetics, as well as current limitations in recycling technologies. Less than 1% of the global fibre market came from pre- and post-consumer recycled textiles.

    The combined share of all recycled fibres slightly decreased in 2023, from around 7.9% to 7.7%, mainly due to an increase in the production of fossil-based polyester, which had lower prices than recycled polyester. Fossil based synthetics production increased from 67 million tonnes in 2022 to 75 million tonnes in 2023. Meanwhile, less than 1% of the global fibre market came from pre- and post-consumer recycled textiles.
  • Cotton production saw a slight decline: Total global cotton volumes fell slightly from 25.1 million tonnes in 2022 to 24.4 million tonnes in 2023. However, the share of cotton produced under sustainability programs remained stable, accounting for 29% of all cotton produced.
  • Certified wool climbs: Data showed positive trends for wool produced under standards such as the Responsible Wool Standard (RWS), ZQ, SustainaWOOL (GREEN and GOLD), Sustainable Cape Wool Standard (SCWS) and Climate Beneficial programs. This increased from 4.2% in 2022 to 4.8% in 2023. Recycled wool continued to account for around 6% of the global wool market.
  • Certified mohair and cashmere reached almost half of market share: Certified fibres such as mohair and cashmere saw notable growth, both with market shares of 47%.
  • Manmade cellulosic fibres production increased: Overall MMCF production increased from 7.4 million tonnes in 2022 to 7.9 million tonnes in 2023, representing 6% of the global fibre market.

The report highlights a continued reliance on new virgin fossil-based synthetic materials, threatening to undermine the industry’s commitments to its climate goals. It also shows the current limitations of textile-to-textile recycling and an urgent need for innovative solutions, with most recycled polyester still coming from PET bottles.

Amid these concerns, one positive trend that stands out is the increased industry demand for responsible animal fibres through programs like the Responsible Mohair Standard (RMS) and Responsible Alpaca Standard (RAS), both contributing to better animal welfare and environmental management. This indicates the potential of farm-level standards of this kind to increase market recognition of more sustainable practices on the ground.

“We hope this data serves as a clear call to action for the industry, highlighting both the successes and the critical areas where we must intensify our focus to meet climate targets,” said Claire Bergkamp, CEO of Textile Exchange.

“Unlocking textile-to-textile recycling pathways will be essential to reducing reliance on virgin synthetics. Equally important is continuing to support those on the ground who are driving the transition from conventional systems to preferred materials. It is more urgent than ever to support those who have already invested in preferred systems, while also enabling the transition away from conventional at scale.”

Download of the Materials Market Report 2024.

More information:
fibre production Market report
Source:

Textile Exchange

Project Remake Photo Anna Kjellsson
23.09.2024

Textile skills for unemployed individuals to enter a new industry

From 2025, municipalities will be required to collect and manage large volumes of textiles, following the EU's new waste directive. The project "Remake Textile" is preparing for this by providing skill development to long-term unemployed individuals. At the Swedish School of Textiles, participants learn about textiles and ways to breathe new life into old fabrics.

From 2025, municipalities will be required to collect and manage large volumes of textiles, following the EU's new waste directive. The project "Remake Textile" is preparing for this by providing skill development to long-term unemployed individuals. At the Swedish School of Textiles, participants learn about textiles and ways to breathe new life into old fabrics.

Three groups, each consisting of participants who have been out of the job market for an extended period, will take part in the project over nine months. The project began with a focus on health and working life before shifting its focus to textiles. The first group has just completed their time at the Swedish School of Textiles and is now moving on to internships in the second-hand industry.
“They have lea
rned how a fibre becomes yarn and then fabric. We have worked with printing and dyeing and how to create a product from the material. We have also worked on repairs – mending and fixing garments and textiles,” explains Tuser Biswas, postdoctoral researcher in textile technology who leads the Swedish School of Textiles' part of the project.

In addition to the Swedish School of Textiles at the University of Borås, other project partners include the Gothenburg Region, the organisations Doing Good and Coompanion, and it is financed by the European Social Fund.

“In this project, there was a demand for knowledge in an area that doesn't yet exist on the market – something that will be important in the future. With the waste directive, solutions are needed to handle textile waste, and the hope is that participants in this project will have valuable skills and be able to start working in this industry at short notice,” Tuser Biswas explains.

Education as Part of the Solution
“In this project, we are trying to address the upcoming waste challenge with education. However, this education is not as intensive as our regular courses and programmes. We have tried to be flexible and adapt to the participants’ prior knowledge and to what we can offer in two weeks,” says Tuser Biswas.

Positive Participants
Nino, one of the participants, previously had experience in creating and redesigning garments.
“I have done a lot on my own before too. I have always been punk in that way – if there are no resources, I still go ahead. These weeks at the Swedish School of Textiles have been fun; it has been very positive to try everything out and luxurious to come here, meet all the great teachers, and be in the facilities.”

Looking forward to the internship at a second-hand shop, Nino feels prepared:
“We will get to choose from textile waste that cannot be sold. Instead, we will create something new out of it!”

About the project Remake Textile
The objective of the project is to develop innovative solutions for managing the increasing amount of textile waste that municipalities will be responsible for from 2025 onwards. At the same time, it focuses on research training and skills development about textile recycling for unemployed people with good academic backgrounds.

Start date: 2024-03-01
End date: 2026-02-28

Through collaboration with various partners, the project aims to increase the workforce for textile sorting facilities in municipalities and recycling industries, while supporting cooperative and non-profit organizations in circular textile activities.

The outcome of the project is expected to promote a sustainable circular business model through textile sorting and recycling activities, which can serve as a model for the whole industry. The aim is to create a solution that both promotes sustainability in the textile industry and increases opportunities for those previously unemployed and economically vulnerable. At the same time, the municipalities will be well-informed and given the opportunity to use our developed training modules and personnel during or after the project period.

Source:

University of Borås, Anna Kjellsson

This image from the CoCuRA software shows how it identifes conventional cotton, organic cotton and other agricultural fields. Source GOTS
17.09.2024

Detecting organically grown cotton with AI support via satellite

The project:

  • analysed 2.7 million square kilometres in India for organic cotton
  • demonstrates 97% accuracy rate in detecting cotton fields, over 80% accu-racy in determining their organic status.
  • aims to increase organic cotton integrity and availability

In a pioneering move that could reshape sustainable agriculture, the Global Organic Textile Standard (GOTS) and AI firm Marple have unveiled the results of their revolutionary Satellite Cotton Monitoring Project in India, demonstrating a 97% accuracy rate in detecting cotton fields and over 80% accuracy in determining their organic status. Addressing critical challenges in the industry, this innovative project aims to increase organic cotton availability and secure fibre integrity, building on GOTS's existing robust measures.

The project:

  • analysed 2.7 million square kilometres in India for organic cotton
  • demonstrates 97% accuracy rate in detecting cotton fields, over 80% accu-racy in determining their organic status.
  • aims to increase organic cotton integrity and availability

In a pioneering move that could reshape sustainable agriculture, the Global Organic Textile Standard (GOTS) and AI firm Marple have unveiled the results of their revolutionary Satellite Cotton Monitoring Project in India, demonstrating a 97% accuracy rate in detecting cotton fields and over 80% accuracy in determining their organic status. Addressing critical challenges in the industry, this innovative project aims to increase organic cotton availability and secure fibre integrity, building on GOTS's existing robust measures.

Global Standard is a trailblazer, solution provider and thought leader in the voluntary sustainability standards space, and the Satellite Cotton Monitoring Project continues this tradition of innovation and creative thinking.

How it Works
Co-financed by Global Standard, the non-profit behind GOTS, and the European Space Agency’s (ESA) Business Applications and Space Solutions (BASS) programme, the project leverages the Cotton Cultivation Remote Assessment (CoCuRA) software developed by Marple.

Field teams visited over 6,000 fields in India, across the states of Gujarat, Haryana, Madhya Pradesh and Maharashtra, collecting data on crops, soil types and cultivation status. This data was then used by Marple to refine the CoCuRA algorithm for cotton specifics in India. Once the algorithm was trained, it was applied to the entire agricultural area of India, covering a staggering 2.7 million square kilometres. Within seconds, CoCuRA detected all organic and conventional cotton fields with remarkable accuracy. A project of this magnitude is only possible with CoCuRA with no other comparable project or data in existence.

Enhancing Organic Cotton Availability
The technology's ability to pinpoint cotton fields where farmers use near-organic or uncertified organic methods can ensure a steady increase in certified organic cotton by facilitating their certification process.

Jeffrey Thimm, organic production specialist at Global Standard, said, "This technology identifies farmers who use sustainable methods that meet organic standards but lack certification. By integrating these farms into conversion projects, it boosts organic cotton supply, promotes sustainable farming practices and enables farmers to access premiums on their supplies."

Securing Organic Fibre Integrity
Building on GOTS's robust integrity measures, the CoCuRA software integrates AI technology with satellite data to verify cultivation practices meticulously. The data collected also contributes to Global Standards’ Global Fibre Registry, consolidating comprehensive data on raw material production before entering the GOTS value chain, further adding to fraud detection and prevention.

Sustainability in Textiles
Global Standard is recognised for its comprehensive approach to sustainability. From promoting human rights along the value chain to banning harmful chemicals in certified textiles, GOTS sets a benchmark for integrity and sustainability. In addition, GOTS certification is a powerful tool that helps companies comply with legal requirements globally.

"For over 20 years, we have been pioneering solutions to help the industry on its journey towards sustainability,” said Claudia Kersten, managing director of Global Standard. “This project is a game changer, combining satellite technology with AI to meet the growing demand for genuine organic cotton. In addition, this eye in the sky will prevent fraud by allowing us to crosscheck locations and field sizes in a very cost-efficient way. It's a win-win-win situation: farmers have an incentive to grow organic and improve their lives, the industry can secure its supply and meet its sustainability goals, and consumers have a greater choice of organic textiles."

Future Prospects and Global Impact
Following the successful pilot in India, the project aims to expand globally.

Daniel Lanz, managing partner at Marple, said, "India faces unique challenges in the satellite-based detection of agricultural fields. Firstly, the country is extremely large and spans several climate zones. Secondly, field sizes are very small, and thirdly, field boundaries are often indistinguishable, with one field merging into the next. Despite these challenges, CoCuRA has achieved astonishing accuracy in detecting cotton fields and assessing their cultivation methods. This breakthrough provides a pioneering overview of cotton production in India that would be impossible to achieve on the ground. CoCuRA will help protect the integrity of organic farmers and may facilitate more smallholders transitioning to organic farming by simplifying the certification process."

Guillaume Tuan Prigent, a business developer and partnership officer in ESA’s Applications Projects and Studies Division said, “The potential impact of the solution lies in its ability to be scaled and this is exactly what we are working on. We are looking to deliver a solution that could have a global impact for the benefit of all. “

Global Standard is eager to see this technology extend to other regions and additional fibres, which could revolutionise how crops are monitored.

wind energy Photo: Carlos / Saigon - Vietnam, Pixabay
13.09.2024

Negative mood in the composites market

  • Critical assessment of the current business situation
  • Future expectations deteriorate
  • Investment climate remains subdued
  • Expectations for application industries vary
  • Growth drivers with little movement
  • Composites index points downwards

For the 23rd time, Composites Germany (www.composites-germany.de) has collected current key figures on the market for fiber-reinforced plastics. All member companies of the supporting associations of Composites Germany: AVK and Composites United as well as the associated partner VDMA were surveyed.

In order to ensure that the different surveys can be compared without any problems, no fundamental changes were made to the survey this half-year. Once again, mainly qualitative data was collected in relation to current and future market developments.

  • Critical assessment of the current business situation
  • Future expectations deteriorate
  • Investment climate remains subdued
  • Expectations for application industries vary
  • Growth drivers with little movement
  • Composites index points downwards

For the 23rd time, Composites Germany (www.composites-germany.de) has collected current key figures on the market for fiber-reinforced plastics. All member companies of the supporting associations of Composites Germany: AVK and Composites United as well as the associated partner VDMA were surveyed.

In order to ensure that the different surveys can be compared without any problems, no fundamental changes were made to the survey this half-year. Once again, mainly qualitative data was collected in relation to current and future market developments.

Critical assessment of the current business situation
After the assessment of the current business situation was positive at a relatively stable level before the coronavirus crisis, the perception of the survey participants has now deteriorated significantly.       
 
With the exception of a few positive trends, the corresponding indicator has been pointing significantly downwards since 2022. There is still no sign of a trend reversal in the current survey. (see Fig. 1). The assessment of the general business situation is declining in all regions mentioned.

The reasons for the negative sentiment are manifold and were already evident in the previous surveys. High energy, raw material and logistics costs remain a major burden, especially for German industry, but also for many other countries in Europe. This is compounded by a weakening global economy and weak sales for many products in Asia. Massive competition to European products is growing there, particularly in terms of raw materials, which is also partly due to overcapacity, which in turn is putting enormous pressure on prices for suppliers here. Political uncertainties, protectionist tendencies and armed conflicts, such as in Ukraine and recently increasingly in the Middle East, are further worsening the economic climate.

At present, politicians do not seem to be succeeding in creating an environment conducive to business. The composites market has already seen sharp declines in the last two years. The industry continues to send pessimistic signals for the current year. The industry was and is an important economic sector for Germany in particular. It is threatened with further decline if the appropriate regulatory framework is not created to enable competitive production. Germany is currently facing structural changes that are necessary, particularly in terms of economic policy and ecology. These necessary adjustments will take many years and require high levels of investment. It is urgently advisable to finally find a balance between the necessary burden on industry/companies on the one hand and corresponding relief on the other. If the decline of German and European industry continues, at some point it will become questionable who should finance the restructuring. Only a healthy economy, which includes a manufacturing industry, will be able to invest and finance the necessary measures.

This will not be possible for the state itself. Even an expansion of employment in the public sector, as has been pushed in recent months to compensate for job losses in industry, only superficially solves this problem. Healthy state financing is based on a healthy economy. Something urgently needs to be done about this - at the moment, we are digging at our own foundations.
It is not only the assessment of the general business situation that remains pessimistic. The situation of their own companies also continues to be viewed critically. The picture is particularly negative for Germany. Almost 70% of respondents are critical of the current business situation in Germany. The view of global business and Europe is somewhat more positive.
Here, “only” 46% and 54% of respondents respectively assess the situation rather negatively.

Future expectations are becoming gloomier
While the last survey showed rather positive assessments of future expectations, this picture is currently becoming much gloomier. When asked about their assessment of future business development in general, the figures are consistently negative. At present, the respondents do not seem to believe that the situation will improve.  

Respondents were also rather pessimistic about their own company's future expectations, although their expectations regarding their own market position worldwide were positive (see Fig. 3).
It is striking that the view of the German region in relation to Europe and the global economy has been more critical since 2022. 25% of respondents expect the general market situation in Germany to develop negatively.

Only 18% expect the current situation to improve. The figures for Europe and the rest of the world are significantly better.
Only 3% expect the global situation to deteriorate further. 19% expect the situation to improve.

Investment climate remains subdued
The current cautious assessment of the economic situation continues to have an impact on the investment climate.

While 22% of participants in the last survey still expected an increase in personnel capacity (survey 1/2023 = 40%), this figure currently stands at just 13%. In contrast, 33% even expect a decrease in the area of personnel.

The proportion of respondents planning to invest in machinery is also declining. While 56% were still assuming corresponding investments in the last survey, this figure has now fallen to 44%.

Different expectations of application industries
The composites market is characterized by a high degree of heterogeneity in terms of both materials and applications. In the survey, participants were asked to give their assessment of the market development of different core areas.

The expectations are extremely varied. The two most important application areas are the mobility and construction/infrastructure sectors. Both are currently undergoing major upheavals or are affected by declines, which is also clearly reflected in the survey. Growth is expected above all in the wind energy and aviation sectors.

There are generally few shifts here compared to the last survey.

Growth drivers with little movement
In terms of materials, the trend in the assessment of growth drivers is continuing. Whereas for a long time GRP was named as the material from which the main growth impetus for the composites sector is to be expected, the main impetus is now once again expected to come from CFRP or across all materials. The trend from the last survey is continuing here.

There is a slight regional shift. The main impetus for growth is expected to come from Asia and North America. However, the EU (except Germany) is also mentioned. Germany is seen less strongly as a growth driver and continues to lose ground.

Composites Index points downwards
The numerous negative influences of recent times continue to be reflected in the overall Composites Index. This is falling in all areas.
 
In the last two years, the European composites market has lost around 15% of its production volume. Even if not all areas are affected by declines to the same extent, this should be an alarm signal. Until the coronavirus pandemic, there was a continuous increase in production volume for many years. Since the end of the coronavirus crisis and with the increase in macroeconomic uncertainties, Europe and Germany in particular appear to be becoming less attractive as a business location. With production volumes increasing worldwide, Europe's market share is now steadily declining. There are many reasons for this and there are no simple solutions. However, if the industrial location is to remain secure, something has to change quickly. Once companies have moved away, it is difficult to bring them back.

It remains to be seen whether it will be possible to counteract this negative trend. Targeted intervention, including by political decision-makers, would be desirable here. However, this cannot succeed without industry/business. Only together will it be possible to maintain and strengthen Germany as a business/industry location. For composites as a material group in general, there are still very good opportunities to expand the market position in both new and existing markets due to the special portfolio of properties. However, the dependency on overall economic developments remains.

It is now important to develop new market areas through innovation, to consistently exploit opportunities and to work together to further implement composites in existing markets. This can often be achieved better together than alone. With its excellent network, Composi-tes Germany offers a wide range of opportunities.  

The next composites market survey will be published in February 2025.

Source:

Composites Germany

TheDigitalArtist, Pixabay
09.09.2024

“Used textiles recycling at risk of collapse”

The recycling of used textiles is facing a potential collapse. Industry experts agree that the current crisis is more serious than the COVID-19 crisis at the time.

In the case of Covid-19, there was a foreseeable period of a few months, after which the industry recovered quite quickly and the effect of pent-up demand caused prices to return to a normal level within a short period of time.
 
“We now have a completely different situation that threatens the existence of many of the established used textile recyclers in the industry,” says Stefan Voigt, Chairman of the bvse's Textile Recycling Association (FTR).
 
The global market for used textiles has been in a deep crisis for some time, which has now reached a level that can only be described as a free fall. Since the spring, the prices for original collected goods no longer cover the enormous costs for container provision, collection and administration.

The recycling of used textiles is facing a potential collapse. Industry experts agree that the current crisis is more serious than the COVID-19 crisis at the time.

In the case of Covid-19, there was a foreseeable period of a few months, after which the industry recovered quite quickly and the effect of pent-up demand caused prices to return to a normal level within a short period of time.
 
“We now have a completely different situation that threatens the existence of many of the established used textile recyclers in the industry,” says Stefan Voigt, Chairman of the bvse's Textile Recycling Association (FTR).
 
The global market for used textiles has been in a deep crisis for some time, which has now reached a level that can only be described as a free fall. Since the spring, the prices for original collected goods no longer cover the enormous costs for container provision, collection and administration.

The price of original goods traded on the market has now reached an all-time low, causing existential hardship for many market participants.

The sale of original and sorted goods has become almost impossible. The loss of established market players has destroyed supply chains that have been tried and tested for years, and stocks of original and sorted goods have reached unprecedented record levels. Some market participants are forced to replace the usual sales business with bartering.

According to industry information, downstream players in the recycling chain, such as shredding and spinning mills, are also under pressure and have made massive staff cuts. The production of cleaning cloths has also reached an all-time low. Due to the relocation of production abroad and reduced domestic production, demand for cleaning cloths has fallen and prices have slipped to a very low level.

Consumer behavior and international markets exacerbate the crisis
Due to the generally high cost burden on the population, the consumption of textiles has collapsed. The negative trend of consuming low-quality fast fashion is now being reinforced by ultra-fast fashion of even poorer quality. This has disastrous effects on value creation within the recycling chain for used textiles.

“During the sorting process, increasingly large quantities of relatively new textiles are being found that are already so defective that they are no longer suitable for further use and therefore have to be fed into the recycling process,” explains Voigt. However, there is no money to be made here either, as the same cost structures apply to this part of the original goods as to wearable goods and the recycling process is also very cost-intensive.

Industry calls for the introduction of an EPR system
Until now, the recycling of the proportion of sorted goods has been subsidised by the proceeds from wearable goods, but this system has not worked for some time. The industry is desperately waiting for the introduction of a national EPR system for textiles in order to stabilise costs.

The EU Commission's recently published draft of the revised EU Waste Framework Directive provides for the introduction of a system of extended producer responsibility for textiles. The existing collection and recycling structures in Germany, which enable the separate collection of used textiles close to the public, are to play a central role in this.

The draft of the National Circular Economy Strategy (NKWS) of the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (BMUV) also emphasises the importance of the national recycling industry for used textiles. Without it, the establishment of a closed-loop system for textiles would not be feasible.

Crisis not limited to Germany
The crisis has also made ripples internationally. Countries such as the Netherlands, traditionally the largest buyer of used textiles from Germany, have already addressed the crisis in the national media. Almost 250 companies there are involved in the collection, sorting and international marketing of used textiles.

Around 60 per cent of the original goods are recycled as sustainable clothing after sorting, meaning that the industry is reliant on stable markets in which recycling proceeds can be generated. But this is precisely the problem. ‘Due to the effects of the Russian war of aggression in Ukraine, the Eastern European market can only be served in fragments,’ explains Voigt.

In addition, despite its potential, the African market is currently facing enormous challenges because there is practically no money left in the system, he adds, explaining the concerns he receives from many interviewees in the industry: ‘The enormous drop in the value of many currencies in various African countries    means that it is becoming increasingly difficult for African customers to buy urgently needed second-hand clothing for hard currency,’ Voigt continues.

For example, the currency in the extremely important African market of Ghana has lost roughly 20 per cent against the euro over the last six months of 2024. In addition, the transfer of foreign currency now takes up to two months, meaning that it now takes up to six months to return the proceeds of realisation.

In addition, the African market is increasingly dominated by Chinese influence. ‘The actually better quality of high-quality used European second-hand clothing can hardly compete with new Asian goods,’ reports Voigt. Ultra fast fashion from China is flooding the market with extremely low prices, making it increasingly difficult to market sorted, second-hand clothing.

In addition to economic problems, there are also logistical challenges. ‘Our customers are reporting increasing difficulties in obtaining the necessary visas for a business visit to Europe within an acceptable waiting period,’ explains Voigt. The waiting time for an appointment at the consulate can currently be up to two months.

Call for short-term measures
In order to prevent the system from collapsing in the short term, Voigt believes that the usual remuneration structures for local authorities and providers of parking spaces for collection containers need to be reconsidered. ‘Recycling revenues have not been realised for some time now, so they can no longer be paid out or must be adjusted to the current situation,’ says Voigt.

The industry expects the current crisis to last even longer. ‘Not everyone will survive,’ predicts Voigt. Many collection areas are already being offered on the open market and various collection capacities are being cancelled without replacement. The future of the used textile recycling industry remains uncertain and there is no end to the crisis in sight.

More information:
textile waste textile recycling
Source:

bvse-Bundesverband Sekundärrohstoffe und Entsorgung e.V.

Texcare Messe Frankfurt (c) Messe Frankfurt
06.09.2024

Circular economy long established in the textile care industry

The professional rental service for linen and workwear is a textbook example of a circular, sustainable business model, which uses hard-wearing textiles instead of lower-quality or disposable products (reduce), optimises their useful life through professional care / repairs (reuse) and develops solutions to re-purpose them after they have reached the end of their useful life (recycle).

The professional rental service for linen and workwear is a textbook example of a circular, sustainable business model, which uses hard-wearing textiles instead of lower-quality or disposable products (reduce), optimises their useful life through professional care / repairs (reuse) and develops solutions to re-purpose them after they have reached the end of their useful life (recycle).

With its ‘Green Deal’, the European Commission has, inter alia, initiated the transformation of the garment-manufacturing industry from a business model of short-lived consumption to a more sustainable, circular system. By 2030, fast fashion will be replaced increasingly by textile products that have a longer life cycle and thus contribute to reducing environmental pollution. To achieve this goal, textiles must be more durable, reusable, repairable, fibre-to-fibre recyclable and have a greater proportion of recycled fibres. For the textile-service sector, the circularity requirements defined in Brussels have long been standard practice because hiring out professional workwear and protective clothing, as well as hotel and hospital linen, mop covers and other items, requires precisely these characteristics, i.e., the fabrics must be durable, washable – and therefore reusable – and easy to repair. Thanks to these qualities, rental linen can remain in the service cycle for a long time and has thus become established as a sustainable alternative to outright purchasing.

Laundry in the circular system
The textile-rental service offers a variety of systems tailored to the needs of different groups of customers. Workwear and protective clothing is stocked by textile-service laundries in a wide range of sizes, so that each customer's employees can be supplied with a suitable outfit. This is then labelled and made available to the individual wearer. If the employee leaves the customer's employ, the garments are taken back and – provided they are in good condition – reused as replacement clothing. In the case of workwear in the healthcare sector, as well as bed linen, table linen and towelling, a pool solution is more common. A laundry pool comprises similar textiles that are supplied without being assigned to a specific customer or wearer, which significantly reduces the quantity of textiles used.

Local textile cleaning is another major area of commercial textile care that also helps extend the life of textiles with a wide range of goods being professionally processed on behalf of private and commercial customers by such businesses. High-quality outerwear and underwear, premium home textiles, delicate down jackets or heavily soiled workwear are all restored to a clean, fresh and usable condition. And if stains prove particularly stubborn even after cleaning, a specialist company can re-colour the goods, thus ensuring they can be reused.

The recycling benefits of textile rental services
Besides the two main requirements of ‘reuse’ and ‘repair’, the sector is also working hard on the recycling of old textiles, as called for by the EU textile strategy. Several workwear manufacturers have developed their own returns models, whereby customers can hand back their old workwear when buying new items. The old workwear is then reused or recycled by partner organisations. Large companies, including Deutsche Telekom and Ikea, have also introduced a centralised returns and recycling system for discarded workwear. Indeed, the furniture giant has even created its own home textiles line using old workwear. However, the easiest way to implement a system of this kind is to use a rental service, as the goods are always returned to the specialist company and sorted there. In other words, the used laundry is collected in one place after washing, where it forms a large volume of similar discarded textiles, which greatly simplifies both the collection logistics and the recycling process. These favourable conditions have already led to the establishment of an initial initiative in which several textile service companies pool their waste hotel linen and channel it into industrial cotton-to-pulp recycling. Whether individual or joint initiatives, this is a testament to the industry's commitment to the development of solutions for ‘waste materials’.

Textile upcycling for designer items
Solutions for rejected textiles are more varied than simply recycling them. For example, Sweden's Fristads company offers a repair service for its workwear. The British department store chain John Lewis goes one step further. In a field trial, customers can hand in their garments to selected stores for cleaning and repair. The garments are processed by Johnsons, a laundry and dry-cleaning chain belonging to the Timpson Group. Designers have also recognised second-life opportunities for discarded workwear and contract textiles. For example, they apply elaborate decorations to items from their collections or take them apart and reassemble them. The creatively enhanced goods are then returned to the market as designer items. There are also recycling solutions for large contract textiles, which are converted into bags or cosmetic accessories or, after a colour-changing process, into small batches of aprons. However, the effect of such concepts on reducing textile waste is as small as their diversity. Only the established second-hand model is able to return larger quantities to the economic cycle.

The pros and cons of recycled materials
While the textile-care industry is unanimous in its support for the requirements of the EU textile strategy and is contributing solutions, it disagrees on increasing the proportion of recycled fibres in its products. Although there are already numerous workwear collections and hotel-linen ranges that meet the requirements from Brussels, some of the products do not, however, meet the durability requirements because the fibre quality deteriorates with each recycling stage. Therefore, many contract-textile manufacturers still rely exclusively on virgin, brand-new fibre materials to ensure durability in industrial laundering. Texcare International offers the industry the perfect setting to discuss this conflict of objectives in depth.

Source:

Messe Frankfurt

Oyster mushroom Image: Andre Mouton, Pixabay
02.09.2024

Fungal Mycelium as the Basis for Sustainable Products

Fungi have more to offer than meets the eye. Their thread-like cells, which grow extensively and out of sight underground like a network of roots, offer huge potential for producing sustainable, biodegradable materials. Researchers at the Fraunhofer Institute for Applied Polymer Research IAP in Potsdam Science Park are using this mycelium to develop a wide range of recyclable products, from wallets and insulation to packaging.

Flexible mycelium materials in different thicknesses can be used as upholstery material, insulation board or alternatives to leather.

Fungi have more to offer than meets the eye. Their thread-like cells, which grow extensively and out of sight underground like a network of roots, offer huge potential for producing sustainable, biodegradable materials. Researchers at the Fraunhofer Institute for Applied Polymer Research IAP in Potsdam Science Park are using this mycelium to develop a wide range of recyclable products, from wallets and insulation to packaging.

Flexible mycelium materials in different thicknesses can be used as upholstery material, insulation board or alternatives to leather.

To most of us, fungi look like a curved cap and a stem. However, the largest part of the organism consists of a network of cell filaments called mycelium, which mainly spreads below ground and can reach significant proportions. This finely branched network has been underutilized until now. However, for researchers at the Fraunhofer Institute for Applied Polymer Research IAP in Potsdam, mycelium represents a pioneering raw material with the potential to replace petroleum-based products with natural, organic mycelium composites. Organic residues from regional agricultural and forestry activities are used as the substrate for the fungal cultures. In various projects, the researchers are using mycelium-based materials to produce insulation, packaging, and animal-free alternatives to leather products.

Mycelium-based materials from regional agricultural residues
“Faced with climate change and dwindling fossil raw materials, there is an urgent need for biodegradable materials that can be produced with lower energy consumption,” says Dr. Hannes Hinneburg, a biotechnologist at Fraunhofer IAP. Together with his team, he is using mycelium — for instance, from edible mushrooms or bracket fungi such as the oyster mushroom or tinder fungus — to transform locally available plant residues into sustainable materials. “The mycelium has properties that can be used to produce environmentally friendly, energy-efficient materials, since the growth of the fungi takes place under ambient conditions and CO2 remains stored in the residues. When cellulose and other organic residues decompose, a compact, three-dimensional network forms, enabling a self-sustaining structure to develop,” explains Hinneburg. This produces a material that is a complex compound with an organic substrate such as cereal residues, wood chips, hemp, reeds, rape or other agricultural residues. These substances are a source of nutrients for the fungus and are permeated entirely by a fine network of mycelia during the metabolic process. This produces a fully organic composite that can be made into the required shape and stabilized through thermal treatment. “First, you mix water together with agricultural residues such as straw, wood chips and sawdust to form a mass. Once the level of humidity and particle size have been determined, and the subsequent heat treatment to kill off competing germs has been completed, the substrate is ready. It provides food for the fungi and is mixed with the mycelium. Following a growth phase of around two to three weeks in the incubator, the mixture will produce, depending on the formulation and process used, a substance similar to leather or a composite that can be processed further,” says Hinneburg, summarizing the production process. No light is required for this process — a bonus as far as energy efficiency is concerned.

Versatile applications: strength and elasticity can be specifically configured
The fungal materials can be cultivated with a wide range of properties. Depending on the application, they can be hard-wearing, stretchable, tear-resistant, impermeable, elastic, soft and fluffy, or open-pored. The result is determined by the combination of the type of fungus and agricultural residues, plus variable parameters such as temperature and humidity. The duration of mycelial growth also influences the end product. The versatility of the material means it can take on a huge variety of forms, from thick blocks to wafer-thin layers, and be used in a multitude of scenarios. This makes it possible to use fungi-based materials for textile upholstery, packaging, furniture, bags or insulation boards for interiors. When used as a construction material, the fungus primarily functions as a biological adhesive since a wide range of organic particles are joined together via the mycelium.

“The many positive properties of the material, heat-insulating, electrically insulating, moisture-regulating and fire-resistant, enable an important step toward circular and climate-positive construction,” says Hinneburg, one of whose current projects involves developing a novel polystyrene alternative for thermal insulation. In another project, he is working alongside the Institute for Food and Environmental Research and Agro Saarmund e.G. to produce environmentally friendly, mycelium-based packaging trays from residues and raw materials sourced from local agricultural and forestry activities. In work he has done with designers, he has also developed the base material for animal-free alternatives to leather products such as bags and wallets. As the mycelium-based materials look similar to their leather counterparts, they can be used to complement leather items in certain areas.

Developing industrial processes
In Europe, only a few companies are currently developing mycelium-based materials for commercial use. The challenges in this area include access to biogenic residues, the ability to ensure consistent product quality and the means to scale up activities efficiently.

To address these challenges, the researchers are using a newly developed roll-to-roll method, for which they have already created a prototype. This method offers significant advantages over standard manufacturing processes involving boxes and shelving systems: By using a standardized, continuous production method under controlled process conditions (such as temperature and humidity), the researchers can ensure that the mycelium-based products have consistent material properties. What’s more, resources can be used more efficiently, and production can be scaled to an industrial level. “This is crucial in order to meet growing industry demand for sustainable materials and to become less dependent on petroleum in the long term. Production can also be improved further by using innovative technologies such as artificial intelligence to optimize the combination of residues and types of fungi,” says Hinneburg.

Source:

Fraunhofer Institute for Applied Polymer Research IAP

Breakthrough in smart fabric for sensing and energy harvesting (c) University of Waterloo
26.08.2024

Breakthrough in smart fabric for sensing and energy harvesting

Imagine a coat that captures solar energy to keep you cozy on a chilly winter walk, or a shirt that can monitor your heart rate and temperature. Picture clothing athletes can wear to track their performance without the need for bulky battery packs.

University of Waterloo researchers have developed a smart fabric with these remarkable capabilities. The fabric has the potential for energy harvesting, health monitoring and movement tracking applications.

The new fabric can convert body heat and solar energy into electricity, potentially enabling continuous operation with no need for an external power source. Different sensors monitoring temperature, stress and more can be integrated into the material.

Imagine a coat that captures solar energy to keep you cozy on a chilly winter walk, or a shirt that can monitor your heart rate and temperature. Picture clothing athletes can wear to track their performance without the need for bulky battery packs.

University of Waterloo researchers have developed a smart fabric with these remarkable capabilities. The fabric has the potential for energy harvesting, health monitoring and movement tracking applications.

The new fabric can convert body heat and solar energy into electricity, potentially enabling continuous operation with no need for an external power source. Different sensors monitoring temperature, stress and more can be integrated into the material.

It can detect temperature changes and a range of other sensors to monitor pressure, chemical composition and more. One promising application is smart face masks that can track breath temperature and rate and detect chemicals in breath to help identify viruses, lung cancer and other conditions.

“We have developed a fabric material with multifunctional sensing capabilities and self-powering potential,” said Yuning Li, a professor in the Department of Chemical Engineering. “This innovation brings us closer to practical applications for smart fabrics.”

Unlike current wearable devices that often depend on external power sources or frequent recharging, this breakthrough research has created a novel fabric which is more stable, durable, and cost-effective than other fabrics on the market.

This research, conducted in collaboration with Professor Chaoxia Wang and PhD student Jun Peng from the College of Textile Science and Engineering at Jiangnan University, showcases the potential of integrating advanced materials such as MXene and conductive polymers with cutting-edge textile technologies to advance smart fabrics for wearable technology.

Li, director of Waterloo’s Printable Electronic Materials Lab, highlighted the significance of this advancement, which is the latest in the university’s suite of technologies disrupting health boundaries.

“AI technology is evolving rapidly, offering sophisticated signal analysis for health monitoring, food and pharmaceutical storage, environmental monitoring, and more. However, this progress relies on extensive data collection, which conventional sensors, often bulky, heavy, and costly, cannot meet,” Li said. “Printed sensors, including those embedded in smart fabrics, are ideal for continuous data collection and monitoring. This new smart fabric is a step forward in making these applications practical.”

The next phase of research will focus on further enhancing the fabric’s performance and integrating it with electronic components in collaboration with electrical and computer engineers. Future developments may include a smartphone app to track and transmit data from the fabric to healthcare professionals, enabling real-time, non-invasive health monitoring and everyday use.

The study is published in the Journal of Materials Science & Technology.

Source:

Waterloo University

Cladding parts: Hemp replacing glass fibres (c) Fraunhofer IWU
23.08.2024

Cladding parts: Hemp replacing glass fibres

Sheet moulding compounds (SMCs) are long-fibre-reinforced semi-finished products that can be used to produce complex moulded parts with a high surface quality using the extrusion process. The Fraunhofer IWU Zittau and the Zittau/Görlitz University of Applied Sciences are researching biological alternatives for glass fibres in composite materials. The aim is to develop economical manufacturing processes so that the switch to less environmentally harmful biogenic residues for fibre reinforcement can be achieved soon.

SMC components can be used in a wide range of applications. They are used as interior panelling in trains and railways, exterior panelling for trucks and agricultural machinery or to protect electrical distribution boxes and switchgear.

Sheet moulding compounds (SMCs) are long-fibre-reinforced semi-finished products that can be used to produce complex moulded parts with a high surface quality using the extrusion process. The Fraunhofer IWU Zittau and the Zittau/Görlitz University of Applied Sciences are researching biological alternatives for glass fibres in composite materials. The aim is to develop economical manufacturing processes so that the switch to less environmentally harmful biogenic residues for fibre reinforcement can be achieved soon.

SMC components can be used in a wide range of applications. They are used as interior panelling in trains and railways, exterior panelling for trucks and agricultural machinery or to protect electrical distribution boxes and switchgear.

Dr Rafael Cordeiro is a research associate at the Fraunhofer Plastics Centre Oberlausitz and in the LaNDER³ project at Zittau/Görlitz University of Applied Sciences. He is working in particular on train interior linings in which the glass fibre is replaced by natural fibres in combination with resin. The natural fibre used is hemp - more precisely, the coarser fibres that are a by-product of textile production using hemp. The proportion of natural fibres in the newly developed SMC is around 15 percent by weight; the planned use of bio-based resin as the matrix, i.e. the component in which the fibres are embedded, will increase the ‘natural’ proportion to up to 38 percent in future. Added to this are 55 percent minerals such as calcium carbonate (known as limestone or chalk) or aluminium hydroxide hydrate, which occurs naturally as bauxite. The remaining 7 per cent are predominantly petrochemical additives for which there is currently no bio-based substitute. The following are important facts about natural fibre SMCs.

Challenges for production
One challenge for production is that natural fibres in particular bind moisture and may require prior drying in countries with high humidity, otherwise blistering may occur. The formation of bubbles also depends on the impregnation.

Dr Cordeiro: ‘The natural fibre SMC has been developed in such a way that only very small additional plant investments and minimal process parameter changes are required for the production of larger quantities.’

Energy consumption during production
There are no significant differences between natural fibre and glass fibre SMCs in terms of the processes and the energy required for the production of semi-finished products and components by impact extrusion. Semi-finished products are produced at room temperature, which is why the energy requirement of the system is relatively low. The forming of components takes place in a hot pressing process in hydraulic presses, at temperatures between 110 °C and 150 °C. This temperature window is lower than that of thermoplastic components and does not require any cooling or heating cycles for the moulds, with correspondingly positive effects on energy requirements.

Impact on people and the environment
As with all plastic products, there is also the possibility of microplastic formation through abrasion. However, the natural fibre SMCs developed at the Fraunhofer IWU in Zittau are intended for the applications mentioned above, where there is no intensive abrasion. The substitution of glass fibres with hemp fibres leads to a significant reduction in skin and respiratory tract irritation among employees in the area of material and product manufacturing as well as when handling damaged parts or during disposal. In addition, the production of hemp fibres results in significantly lower CO2 emissions than glass fibres, which considerably reduces the environmental impact.

Durability
The typical service life of natural fibre SMCs is up to 30 years, depending on whether the material is used for indoor or outdoor applications. The weather resistance, for example, can be increased by specifically adjusting the matrix resin.

Biodegradability and recyclability
Similar to conventional SMCs, natural fibre SMCs cannot be recycled either. Although the latter are not biodegradable as a whole, promising attempts are being made to separate the natural fibre from the matrix and the filler so that the natural fibre portion can be composted and the filler reused. After separation, the fibres are so small that they can no longer be used in SMC applications. There is a need for further research into the technological reuse of the short fibres obtained.

Dr Rafael Cordeiro: ‘The sustainability balance of natural fibre SMCs is not yet perfect. But it is already much better than that of glass fibre-reinforced composite materials. The material costs are also right. This means that the alternatives we have developed to classic glass fibre SMCs are definitely marketable. The production of more sustainable SMC components is possible.’

Source:

The information on natural fibre SMCs is based on an interview conducted by Tina-Seline Göttinger with Dr Rafael Cordeiro as part of a bachelor thesis
Fraunhofer IWU

One in four buys mainly online - sustainability remains important Photo: Pabirtra Kaity auf Pixabay
20.08.2024

One in four buys mainly online - sustainability remains important

  • 82 per cent of shoppers are against the destroying of returns
  • 67 per cent of under-30s accept higher prices for climate-neutral shipping

The digital shopping basket remains popular in Germany: around three in ten purchases are made online, ex-actly as many as in 2020. 27 per cent of respondents buy at least half of their goods and services online. Sustainability plays an important role here: around three quarters (77 per cent) of shoppers prefer suppliers that offer moderate and sustainable packaging and buy from them online. 43 per cent make sure when shopping that they only choose products that they are unlikely to have to return. And 82 per cent support the idea that returns should not be cancelled. These are the results of the representative ‘Postbank Digital Study 2024’.

  • 82 per cent of shoppers are against the destroying of returns
  • 67 per cent of under-30s accept higher prices for climate-neutral shipping

The digital shopping basket remains popular in Germany: around three in ten purchases are made online, ex-actly as many as in 2020. 27 per cent of respondents buy at least half of their goods and services online. Sustainability plays an important role here: around three quarters (77 per cent) of shoppers prefer suppliers that offer moderate and sustainable packaging and buy from them online. 43 per cent make sure when shopping that they only choose products that they are unlikely to have to return. And 82 per cent support the idea that returns should not be cancelled. These are the results of the representative ‘Postbank Digital Study 2024’.

According to the study, younger people are significantly more open to e-commerce than their elders: Digital natives (under 40 years of age) order 40 per cent of their goods online - 13 percentage points more than digital immigrants (over 40 years of age). The reasons for online shopping also vary greatly between young and old. While the convenient access to home for online shoppers remains the main reason for online shopping in all age groups, the proportion of young people at 52 per cent is significantly lower than the average (62 per cent).

For younger online shoppers, immediate availability (38 per cent) and the option to shop on the go via app (30 per cent) are particularly important. In comparison, only 22 per cent of older users have used apps for shopping to date. Favourable prices are estimated by 56 percent of older online shoppers, while this is important for only 46 percent of younger shoppers. There is a further difference in terms of flexible opening hours: 53 per cent of those aged 40 and over value the ability to shop at any time, compared to 40 per cent of online shoppers under 40.

‘We are facing similar challenges in the digitalisa-tion of our banking services,’ says Thomas Brosch, Head of Digital Sales at Postbank. ‘The needs of the generations differ. We have to constantly optimise our services and the user-friendliness of our offerings - in online banking, on smartphones and in physical branches. In this way, we can make good offers to young and old customers alike.’

Online shopping yes, but please without regrets
18 to 39-year-olds are much more willing to dig deeper into their pockets for sustainability than those aged 40 and over. For example, younger online shoppers pay more attention to CO2 offsetting and are more willing than average to make a voluntary compensation payment: 26 per cent prefer to order from shops where a donation can be made to compensate for the CO2 produced. In contrast, only 11 per cent of older people do so. Two out of three younger Germans also accept higher product prices for sustainable shipping, while not even one in two (46 per cent) of those aged 40 and over are inclined to do so.

70 per cent of digital natives already have experience with in-app purchases
The study also reveals another trend: around four out of ten Germans have already made in-app purchases. And 70 per cent of digital natives already have experience of buying additional content or functions in mobile applications. Those aged 40 and over are much more reluctant: only 29 per cent have already made in-app purchases at least once, and 43 per cent have no plans to do so. Digital natives are not only interested in a good price-performance ratio for in-app purchases, but also in adequate protection against unwanted spending. A quarter of this age group would like this, compared to just 18 per cent of older people.

Younger shoppers are more likely to use banking services when shopping online
When it comes to paying, six out of ten digital natives have already accepted instalment payments or credit offers when shopping online. In addition to favourable conditions (36%) and a reputable payment service provider (35%), it is particularly important to young shoppers that banking services are easy to use (35%). Across all age groups, 89 per cent of Germans have already used such banking services.

Background information on the Postbank Digital Study 2024
For the ‘Postbank Digital Study 2024 - The Digital Germans’, 3,171 residents were surveyed in April of this year. For the tenth year in a row, Postbank is using the study to investigate which developments are emerging in various areas of life with regard to digitalisation in general and financial topics in particular. In order to depict a population-representative structure, the sample was weighted according to federal state (proportionalisation), age and gender. The 2021 census of the Federal Statistical Office was used as the reference file. The results are rounded to whole numbers. Deviations in the totals can be explained by rounding differences.

Source:

Postbank

Photo by John Zich
14.08.2024

New fabric makes urban heat islands more bearable

With applications in clothing, construction and food storage, the new textile reduces heat from both the sun and thermal radiation from nearby buildings.

This year has already seen massive heatwaves around the globe, with cities in Mexico, India, Pakistan and Oman hitting temperatures near or past 50 degrees Celsius (122 degrees Fahrenheit).  

As global temperatures and urban populations rise, the world’s cities have become “urban heat islands,” with tight-packed conditions and thermal radiation emitting from pavement and skyscraper trapping and magnifying these temperatures. With 68 percent of all people predicted to live in cities by 2050, this is a growing, deadly problem.

With applications in clothing, construction and food storage, the new textile reduces heat from both the sun and thermal radiation from nearby buildings.

This year has already seen massive heatwaves around the globe, with cities in Mexico, India, Pakistan and Oman hitting temperatures near or past 50 degrees Celsius (122 degrees Fahrenheit).  

As global temperatures and urban populations rise, the world’s cities have become “urban heat islands,” with tight-packed conditions and thermal radiation emitting from pavement and skyscraper trapping and magnifying these temperatures. With 68 percent of all people predicted to live in cities by 2050, this is a growing, deadly problem.

In a paper published in Science, researchers from the UChicago Pritzker School of Molecular Engineering (PME) detail a new wearable fabric that can help urban residents survive the worst impacts of massive heat caused by global climate change, with applications in clothing, building and car design, and food storage.  

In tests under the Arizona sun, the material kept 2.3 degrees Celsius (4.1 degrees Fahrenheit) cooler than the broadband emitter fabric used for outdoor endurance sports and 8.9 degrees Celsius (16 degrees Fahrenheit) cooler than the commercialized silk commonly used for shirts, dresses and other summer clothing.

This, the team hopes, will help many avoid the heat-related hospitalizations and deaths seen in global population centers this year alone.

“We need to reduce carbon emission and make our cities carbon negative or carbon neutral,” PME Asst. Prof. Po-Chun Hsu said. “But meanwhile, people are feeling the impact of these high temperatures.”

‘You have to consider the environment’
Existing cooling fabric for outdoor sports works by reflecting the sun’s light in a diffuse pattern so it doesn’t blind onlookers. But in an urban heat island, the sun is only one source of heat. While the sun bakes from above, thermal radiation emitted from buildings and pavement blast city-dwellers with blistering heat from the sides and below.

This means many materials that perform well in lab tests won’t help city-dwellers in Arizona, Nevada, California, Southeast Asia and China when predicted massive heatwaves hit them over the next few weeks.

“People normally focus on the performance or the material design of cooling textiles,” said co-first author Ronghui Wu, a postdoctoral researcher at PME. “To make a textile that has the potential to apply to real life, you have to consider the environment.”

One simple example of considering the environment is that people stand. They are wearing materials designed to reflect direct sunlight, but only their hats, shoulder coverings and the tops of their shoes – about 3 percent of their clothing – face that direct light. The other 97 of their clothes are being heated by the thermal radiation coming at them from the sides and below, which broadband emitter fabric does not fight.

The sun and sidewalk cook with different heats. Creating one material capable of protecting wearers from both provided a major engineering challenge for the team.

“Solar is visible light, thermal radiation is infrared, so they have different wavelengths. That means you need to have a material that has two optical properties at the same time. That's very challenging to do,” said co-first author Chenxi Sui, a PhD candidate at PME. “You need to play with material science to engineer and tune the material to give you different resonances at different wavelengths.”

The costs of comfort
Cooling a home too often means warming the planet, with the carbon impact of air conditioning and refrigeration systems contributing to climate change.  

“Our civilization actually uses about 10 to 15 percent of the energy in total just to make ourselves feel comfortable wherever we go,” Hsu said.

The risk from heat is not distributed evenly, however. In the U.S. and Japan, more than 90 percent of households have an air conditioner, a number that drops to 5 percent in India and parts of Africa.
 
The PME team’s new textile, which has received a provisional patent, can help provide a passive cooling system that can supplement and reduce the need for energy- and cost-intensive systems.

The applications go far beyond clothing.  

A thicker version of the fabric protected by an invisible layer of polyethylene could be used on the sides of buildings or cars, lowering internal temperatures and reducing the cost and carbon impact of air conditioning. Similarly, the material could be used to transport and store milk and other foods that would otherwise spoil in the heat, cutting refrigeration’s impact.

“You can save a lot of cooling, electricity and energy costs because this is a passive process,” Sui said.

Source:

Paul Dailing | University of Chicago

Image: MIT News; iStock
12.08.2024

Creating quiet spaces with sound-suppressing silk

Researchers engineered a hair-thin fabric to create a lightweight, compact, and efficient mechanism to reduce noise transmission in a large room.

We are living in a very noisy world. From the hum of traffic outside your window to the next-door neighbor’s blaring TV to sounds from a co-worker’s cubicle, unwanted noise remains a resounding problem.

To cut through the din, an interdisciplinary collaboration of researchers from MIT and elsewhere developed a sound-suppressing silk fabric that could be used to create quiet spaces.

The fabric, which is barely thicker than a human hair, contains a special fiber that vibrates when a voltage is applied to it. The researchers leveraged those vibrations to suppress sound in two different ways.

Researchers engineered a hair-thin fabric to create a lightweight, compact, and efficient mechanism to reduce noise transmission in a large room.

We are living in a very noisy world. From the hum of traffic outside your window to the next-door neighbor’s blaring TV to sounds from a co-worker’s cubicle, unwanted noise remains a resounding problem.

To cut through the din, an interdisciplinary collaboration of researchers from MIT and elsewhere developed a sound-suppressing silk fabric that could be used to create quiet spaces.

The fabric, which is barely thicker than a human hair, contains a special fiber that vibrates when a voltage is applied to it. The researchers leveraged those vibrations to suppress sound in two different ways.

In one, the vibrating fabric generates sound waves that interfere with an unwanted noise to cancel it out, similar to noise-canceling headphones, which work well in a small space like your ears but do not work in large enclosures like rooms or planes.

In the other, more surprising technique, the fabric is held still to suppress vibrations that are key to the transmission of sound. This prevents noise from being transmitted through the fabric and quiets the volume beyond. This second approach allows for noise reduction in much larger spaces like rooms or cars.

By using common materials like silk, canvas, and muslin, the researchers created noise-suppressing fabrics which would be practical to implement in real-world spaces. For instance, one could use such a fabric to make dividers in open workspaces or thin fabric walls that prevent sound from getting through.

The fabric can suppress sound by generating sound waves that interfere with an unwanted noise to cancel it out (as seen in figure C) or by being held still to suppress vibrations that are key to the transmission of sound (as seen in figure D).

“Noise is a lot easier to create than quiet. In fact, to keep noise out we dedicate a lot of space to thick walls. [First author] Grace’s work provides a new mechanism for creating quiet spaces with a thin sheet of fabric,” says Yoel Fink, a professor in the departments of Materials Science and Engineering and Electrical Engineering and Computer Science, a Research Laboratory of Electronics principal investigator, and senior author of a paper on the fabric.

Silky silence
The sound-suppressing silk builds off the group’s prior work to create fabric microphones.

In that research, they sewed a single strand of piezoelectric fiber into fabric. Piezoelectric materials produce an electrical signal when squeezed or bent. When a nearby noise causes the fabric to vibrate, the piezoelectric fiber converts those vibrations into an electrical signal, which can capture the sound.

In the new work, the researchers flipped that idea to create a fabric loudspeaker that can be used to cancel out soundwaves.

“While we can use fabric to create sound, there is already so much noise in our world. We thought creating silence could be even more valuable,” Yang says.

Applying an electrical signal to the piezoelectric fiber causes it to vibrate, which generates sound. The researchers demonstrated this by playing Bach’s “Air” using a 130-micrometer sheet of silk mounted on a circular frame.

To enable direct sound suppression, the researchers use a silk fabric loudspeaker to emit sound waves that destructively interfere with unwanted sound waves. They control the vibrations of the piezoelectric fiber so that sound waves emitted by the fabric are opposite of unwanted sound waves that strike the fabric, which can cancel out the noise.

However, this technique is only effective over a small area. So, the researchers built off this idea to develop a technique that uses fabric vibrations to suppress sound in much larger areas, like a bedroom.

Let’s say your next-door neighbors are playing foosball in the middle of the night. You hear noise in your bedroom because the sound in their apartment causes your shared wall to vibrate, which forms sound waves on your side.

To suppress that sound, the researchers could place the silk fabric onto your side of the shared wall, controlling the vibrations in the fiber to force the fabric to remain still. This vibration-mediated suppression prevents sound from being transmitted through the fabric.

“If we can control those vibrations and stop them from happening, we can stop the noise that is generated, as well,” Yang says.

A mirror for sound
Surprisingly, the researchers found that holding the fabric still causes sound to be reflected by the fabric, resulting in a thin piece of silk that reflects sound like a mirror does with light.

Their experiments also revealed that both the mechanical properties of a fabric and the size of its pores affect the efficiency of sound generation. While silk and muslin have similar mechanical properties, the smaller pore sizes of silk make it a better fabric loudspeaker.

But the effective pore size also depends on the frequency of sound waves. If the frequency is low enough, even a fabric with relatively large pores could function effectively, Yang says.

When they tested the silk fabric in direct suppression mode, the researchers found that it could significantly reduce the volume of sounds up to 65 decibels (about as loud as enthusiastic human conversation). In vibration-mediated suppression mode, the fabric could reduce sound transmission up to 75 percent.

These results were only possible due to a robust group of collaborators, Fink says. Graduate students at the Rhode Island School of Design helped the researchers understand the details of constructing fabrics; scientists at the University of Wisconsin at Madison conducted simulations; researchers at Case Western Reserve University characterized materials; and chemical engineers in the Smith Group at MIT used their expertise in gas membrane separation to measure airflow through the fabric.

Moving forward, the researchers want to explore the use of their fabric to block sound of multiple frequencies. This would likely require complex signal processing and additional electronics.

In addition, they want to further study the architecture of the fabric to see how changing things like the number of piezoelectric fibers, the direction in which they are sewn, or the applied voltages could improve performance.

“There are a lot of knobs we can turn to make this sound-suppressing fabric really effective. We want to get people thinking about controlling structural vibrations to suppress sound. This is just the beginning,” says Yang.

This work is funded, in part, by the National Science Foundation (NSF), the Army Research Office (ARO), the Defense Threat Reduction Agency (DTRA), and the Wisconsin Alumni Research Foundation.

Source:

Adam Zewe | MIT News

Neste provides renewable Neste RE, a raw material for polymers and chemicals made from bio-based materials. Source: Neste
06.08.2024

First polyester supply chain from sustainable feedstock

A consortium of seven companies across five countries has jointly established a supply chain for more sustainable polyester fiber. Instead of fossil materials, renewable and bio-based materials as well as carbon capture and utilization (CCU*) will be used in the manufacturing of polyester fibers for The North Face brand in Japan. The consortium parties are Goldwin, in the role of project owner, Mitsubishi Corporation, Chiyoda Corporation (all three from Japan), SK geo centric (South Korea), Indorama Ventures (Thailand), India Glycols (India) and Neste.

Neste will provide renewable Neste RE™ as one of the required ingredients for polyester production. The polyester fiber produced in the project is planned to be used by Goldwin for a part of The North Face products, including sports uniforms, in July 2024. After that, the launch of further Goldwin products and brands will be considered.

A consortium of seven companies across five countries has jointly established a supply chain for more sustainable polyester fiber. Instead of fossil materials, renewable and bio-based materials as well as carbon capture and utilization (CCU*) will be used in the manufacturing of polyester fibers for The North Face brand in Japan. The consortium parties are Goldwin, in the role of project owner, Mitsubishi Corporation, Chiyoda Corporation (all three from Japan), SK geo centric (South Korea), Indorama Ventures (Thailand), India Glycols (India) and Neste.

Neste will provide renewable Neste RE™ as one of the required ingredients for polyester production. The polyester fiber produced in the project is planned to be used by Goldwin for a part of The North Face products, including sports uniforms, in July 2024. After that, the launch of further Goldwin products and brands will be considered.

The seven companies apply a mass balancing approach to ensure credible traceability of material streams throughout the supply chain and will jointly continue to proactively promote the defossilization of materials to contribute to a more sustainable society.

Neste (NESTE, Nasdaq Helsinki) uses science and innovative technology to transform waste and other resources into renewable fuels and circular raw materials. The company creates solutions for combating climate change and accelerating a shift to a circular economy. Being the world’s leading producer of sustainable aviation fuel (SAF) and renewable diesel and a forerunner in developing renewable and circular feedstock solutions for polymers and chemicals, the company aims to help its customers to reduce their greenhouse gas emissions by at least 20 million tons annually by 2030.

The company’s ambition is to make the Porvoo oil refinery in Finland the most sustainable refinery in Europe. Neste is committed to reaching carbon-neutral production by 2035, and will reduce the carbon emission intensity of sold products by 50% by 2040. Neste has also set high standards for biodiversity, human rights and the supply chain. The company has consistently been included in the CDP and the Global 100 lists of the world’s most sustainable companies. In 2023, Neste's revenue stood at EUR 22.9 billion

Source:

Neste

Novel 3D stretchable electronic strip for wearable e-textiles Photo: Nottingham Trent University’s Medical Technologies Innovation Facility
29.07.2024

Novel 3D stretchable electronic strip for wearable e-textiles

Researchers have developed a novel 3D stretchable electronic strip which is expected to open up a range of new possibilities in wearable electronic textiles.

A team at Nottingham Trent University’s Medical Technologies Innovation Facility has led the work, which has paved the way for a new generation of electronic devices which could be embedded in clothing for possible use in healthcare and elite sports settings.

The researchers argue that the new strip has significant benefits and functionality over existing technologies due to its ability to stretch and bend with the body.

The strip’s 3D structure, whereby the circuitry is twisted to form a helical ribbon, transforms it from flexible to stretchable with the ability to bend in multiple directions – rather than just one – and stretch up to at least half its initial size.

Researchers have developed a novel 3D stretchable electronic strip which is expected to open up a range of new possibilities in wearable electronic textiles.

A team at Nottingham Trent University’s Medical Technologies Innovation Facility has led the work, which has paved the way for a new generation of electronic devices which could be embedded in clothing for possible use in healthcare and elite sports settings.

The researchers argue that the new strip has significant benefits and functionality over existing technologies due to its ability to stretch and bend with the body.

The strip’s 3D structure, whereby the circuitry is twisted to form a helical ribbon, transforms it from flexible to stretchable with the ability to bend in multiple directions – rather than just one – and stretch up to at least half its initial size.

The researchers demonstrated LED and temperature sensing helical e-strips as part of the study. A rubber cord supports the structure and helps to prevent damage from buckling and consideration was given to compatibility with clothing and washability.

“We have been able to show the potential for a new form of 3D helical strip for embedded electronics in e-textiles,” said Dr Yang Wei, an expert in electronic textiles and electronic engineering at Nottingham Trent University and the principal investigator of the research.

He said: “We have defined the design, developed prototypes, performed mechanical testing and validated the functionality of the concept. This opens up a range of new possibilities for e-textiles for possible future use in healthcare and elite sports settings.”

Lead author Jessica Stanley, a research fellow in the university’s Medical Technologies Innovation Facility and Department of Engineering, said: “The basic idea has been around for centuries; it's the same concept as taking a metal wire and making it stretchy by winding it into a spring. While helices have already been used in stretchable electronic devices, up to now they have only been used as interconnects – wires that connect parts of a circuit – or single components.

“What sets our work apart is that strips of flexible circuitry containing small components, circuits more complex than a single wire or printed component, are wound into a helix, so that the entire circuit can stretch.

“Because many e-textile products need to be stretchy it is important to have stretchable electronic parts that can move and stretch with the fabric. This study documents our initial work on a new way to achieve this.”

The technology has been patented which it is hoped will allow for faster uptake by industry.

The research, which also involved industry partner Kymira Ltd, is published in the Nature journal Scientific Reports.

Source:

Nottingham Trent University’s Medical Technologies Innovation Facility

Atacama desert Photo by Fernando Rodrigues on Unsplash
23.07.2024

Reducing environmental & health impacts of global trade of 2nd hand clothes

The rise of fast-fashion, marked by rapid turnover of collections, has led to a sevenfold increase in the global trade of used clothing in the last 4 decades. With more than 80% of all purchased clothing items globally (62% in the EU) being disposed of as general garbage, which is incinerated or landfilled, this represents a massive waste of resources, causing severe environmental and health impacts. A report recently published by UNECE and the United Nations Economic Commission for Latin America and the Caribbean (ECLAC) contains an in-depth analysis of second-hand clothing trade between Europe and Chile, offers policy recommendations to the industry, exporting and importing countries to remedy this situation.

The rise of fast-fashion, marked by rapid turnover of collections, has led to a sevenfold increase in the global trade of used clothing in the last 4 decades. With more than 80% of all purchased clothing items globally (62% in the EU) being disposed of as general garbage, which is incinerated or landfilled, this represents a massive waste of resources, causing severe environmental and health impacts. A report recently published by UNECE and the United Nations Economic Commission for Latin America and the Caribbean (ECLAC) contains an in-depth analysis of second-hand clothing trade between Europe and Chile, offers policy recommendations to the industry, exporting and importing countries to remedy this situation.

According to UN Comtrade data, in 2021 the European Union (30%), China (16%), and the United States (15%) were the leading exporters of discarded clothes, while Asia (28%, predominantly Pakistan), Africa (19%, especially Ghana and Kenya), and Latin America (16%, mainly Chile and Guatemala) were the leading importers.  

This has been facilitated by the advent of low-cost synthetic fibres and by trade liberalization that allowed the offshoring of production to countries with low-wage labour. Large proportions of clothing are made from difficult-to-separate blended fibres, making opportunities for economic reuse and recycling rare, particularly in developed countries.

“When did we normalize throwing clothes away?”, questions Lily Cole, Climate Activist and Advisor to UNECE. “As the world, mostly the Global North, has produced and consumed fashion at an unrelenting rate, a handful of countries, mainly in the Global South, have become cemeteries for the world’s unloved clothes. While visiting the Atacama Desert, my attention was brought to the textile mountains and the shifting cultural, economic, and political landscapes that birthed them. Consumer awareness is very helpful, yet, ultimately, we need policies to curb systemic trends, which is why this report and its recommendations are so necessary.”

Europe: sorting and recycling capacities lag behind  
In Europe only 15-20% of disposed textiles are collected, usually through containers, door-to-door collection and donations. About half of the collected textiles are downcycled to be used as, for example, insulation, filling, and single-use industrial wipes. Only 1% is recycled into higher value outputs such as new clothing, while the remainder is exported to developing countries.  

Of the 55% of collected clothes that are reusable, only 5 percentage points have a value on second-hand markets in the EU, while 50 percentage points have a value on export markets.  

The European Union has thus tripled its exports of used clothes over the past 2 decades, from 550,000 to 1.7 million tons. Europe, including the United Kingdom, accounts now for more than a third of global used clothing exports, and this share could continue to grow as collection rates are expected to rise.  

A design-led circular economy approach to clothing is still in its infancy. The EU Circular Economy Action Plan (CEAP) was adopted in 2020, the EU Strategy for Sustainable and Circular Textiles was adopted in 2022, and the EU Ecodesign for Sustainable Products Regulation was adopted in 2023. However, these policies are still to bear fruit in the form of large-scale upstream solutions to the problems of textile waste. 

“The used clothes global market is constantly growing, and with it, its negative impacts. The textile industry has a key responsibility to adopt more sustainable practices, exporters and importers to adopt relevant policy decisions to foster traceability, circularity and sustainability. UN/CEFACT policy recommendations and standards will support this transition. And of course, we all have a role to play, as consumers, to make sustainable choices,” stressed UNECE Executive Secretary Tatiana Molcean.

The case of Chile: mountains of used clothes visible from the moon  
Most countries in Latin America (including Argentina, Brazil, Colombia, Mexico, and Peru) have introduced clothing import bans to protect their national textile and fashion industries and avoid the threats posed by clothing dumps.

By contrast, Chile levies zero tariffs, and applies no quantity restrictions in imports, only requiring shipments to be sanitised (by fumigation). It has thus become one of the top 10 importers in the world, and the first in Latin America, receiving 126,000 tons of textiles in 2021. 40% of these entered the country through the northern port of Iquique, where they are manually sorted, primarily by women, and separated into first, second, and third quality.

75% of all imported used clothes were deemed non-reusable, 30,000 tons of which are covering today 30 hectares of the Atacama desert, generating pollution and creating hazard to local communities’ health. At the same time, trade in second-hand garments also provides employment and formal and informal income for national and migrant populations in established stores and open-air markets across the country, and this must be factored in when redefining public policies.

“To address the environmental and social issues of used textile trade, the EU and Chile must work together on creating robust regulatory frameworks. A partnership between the European Union and Chile could pioneer innovative approaches to regulate and reduce the impact of second-hand textile trade, including by setting global standards for the trade of used textiles, focusing on sustainability and social responsibility." Highlights UNECLAC Executive Secretary, Mr. José Manuel Salazar-Xirinachs.  

Multifold recommendations
The report contains a series of recommendations to the textile industry, exporters and importers.   

To exporting countries

  • Make circular economy considerations central to the design of clothing, with mandatory targets for fibre composition that improve quality, durability, repairability, and recyclability  
  • Introduce an Extended Producer Responsibility (EPR) system holding producers responsible for the products they manufacture  
  • Develop more sorting and recycling plants, through financial incentives  
  • Develop minimum EU criteria for second-hand clothing exports through the use of digital product passports (DPPs)  
  • Run awareness-raising campaigns to encourage consumers to make more informed choices about their clothes

To importing countries – the example of Chile

  • Improve customs procedures & administrative measures at the port of Iquique to ensure digital traceability of flows of used clothing and textile based on the UN/CEFACT traceability standard   
  • Establish a Circular Economy Strategy for Textiles  
  • Set-up public-private alliances for recycling projects through tax extension schemes and funds to support entrepreneurship, innovation, and job creation for vulnerable groups, particularly in the Tarapacá region  
  • Improve the legal framework for waste management   
  • Implement a Regional Solid Waste Control Plan, involving inspections of sanitary landfills, clean points, and dumps to increase the enforcement capacity of regional health authorities  
  • Accelerate the adoption of the Chilean draft law on environmental quality of soils.

The report also recommends making changes to international trade agreements, such as the2023 Interim Trade Agreement between the EU and Chile, which includes a chapter on Trade and Sustainable Development, to step up bilateral cooperation, and using it as a template for other bilateral trade agreements between the EU and other countries.   

Download the Executive Summary

Source:

United Nations Economic Commission for Europe

Bread waste + fungi = yarn (c) Photos by Kanishka Wijayarathna (bread waste), Erik Norving (prototypes), Andreas Nordin (researchers) and Sofie Svensson (microscope).
17.07.2024

Bread waste + fungi = yarn

The production of new materials from fungi is an emerging research area. In a research project at the Swedish School of Textiles at the University of Borås, wet spinning of fungal cell wall material has shown promising results. In the project, fungi were grown on bread waste to produce textile fibers with potential in the medical technology field.

Sofie Svensson's project addresses, among other things, the UN's Global Goals 9, sustainable industry, innovation, and infrastructure, and Goal 12, sustainable consumption and production, as the project aimed to use sustainable methods in a resource- and cost-effective way, with less impact on people and the environment.

Sofie Svensson, who recently defended her dissertation in the field of Resource Recovery, explained:

The production of new materials from fungi is an emerging research area. In a research project at the Swedish School of Textiles at the University of Borås, wet spinning of fungal cell wall material has shown promising results. In the project, fungi were grown on bread waste to produce textile fibers with potential in the medical technology field.

Sofie Svensson's project addresses, among other things, the UN's Global Goals 9, sustainable industry, innovation, and infrastructure, and Goal 12, sustainable consumption and production, as the project aimed to use sustainable methods in a resource- and cost-effective way, with less impact on people and the environment.

Sofie Svensson, who recently defended her dissertation in the field of Resource Recovery, explained:

“My research project is about developing fibres spun from filamentous fungi for textile applications. The fungi were grown on bread waste from grocery stores. Waste that would otherwise have a significant environmental impact if discarded.”

The novelty of the project lies in the method used – wet spinning of cell wall material.

“Wet spinning is a method used to spin fibres (filaments) from materials such as cellulose. In this project, cell wall material from filamentous fungi was used to produce fibres through wet spinning. The cell wall material from the fungi contains various polymers, mainly polysaccharides such as chitin, chitosan, and glucan. The challenge was to spin the material. It took some time initially before we found the right conditions”, explained Sofie Svensson.

Antibacterial properties
Filamentous fungi were cultivated in bioreactors to produce fungal biomass. Cell wall material was then isolated from the fungal biomass and used to spin a filament, which was tested for its suitability in medical applications.

“Tests of the fibers showed compatibility with skin cells and also indicated an antibacterial effect”, said Sofie Svensson, adding:

“In the method we worked with, we focused on using milder processes and chemicals. The use of hazardous and toxic chemicals is currently a challenge in the textile industry, and developing sustainable materials is important to reduce environmental impact.”

What is the significance of the results?
“New materials from fungi are an emerging research area. Hopefully, this research can contribute to the development of new sustainable materials from fungi”, explained Sofie Svensson.

Interest from the surrounding community has been significant during the project, and many have had a positive attitude toward the development of this type of material.

When will we see products made from these fibers?
“This particular method is at the lab scale and still in the research stage”, she explained.

The doctoral project was conducted within the larger research project Sustainable Fungal Textiles: A novel approach for reuse of food waste.

What is the next step in research on fungal fibers?
“Future studies could focus on optimizing the wet spinning process to achieve continuous production of fungal fibers. Additionally, testing the cultivation of fungi on other types of food waste.”

How have you experienced your time as a doctoral student in Resource Recovery?
“It has been an intense period as a doctoral student, and I have been really challenged and developed a lot.”

What is your next step?
“I will be taking parental leave for a while before taking the next step, which is yet to be decided.”

Sofie Svensson defended her dissertation on 14 June at the Swedish Centre for Resource Recovery, University of Borås.
 
Read the dissertation: Development of Filaments Using Cell Wall Material of Filamentous Fungi Grown on Bread Waste for Application in Medical Textiles

Opponent: Han Hösten, Professor, Utrecht University
Main Supervisor: Akram Zamani, Associate Professor, University of Borås
Co-Supervisors: Minna Hakkarainen, Professor, KTH; Lena Berglin, Associate Professor, University of Borå

Source:

University of Borås, Solveig Klug

AI AI generated women, Pixabay
09.07.2024

How the Fashion Industry Is Using AI

Nearly every industry is poised to undergo an unprecedented transformation with the introduction of artificial intelligence (AI). AI, in simple terms, refers to technology, often in the form of computer programs, designed to replicate the human brain’s ability to perform tasks and continuously improve.

Generative AI, powered by deep learning algorithms, is making a significant impact on fashion brands. This advanced technology has the capacity to comprehend patterns within data and generate entirely new examples of text, images and even video (Bain, 2023).

Because of its ability to create new content, the fashion industry is integrating its technology into nearly all of its processes in some way, from design and product descriptions to product recommendations and 3D design (Mcdowell, 2023a).

Table 1 provides a few real-world examples of how AI is already being used in the industry.

Nearly every industry is poised to undergo an unprecedented transformation with the introduction of artificial intelligence (AI). AI, in simple terms, refers to technology, often in the form of computer programs, designed to replicate the human brain’s ability to perform tasks and continuously improve.

Generative AI, powered by deep learning algorithms, is making a significant impact on fashion brands. This advanced technology has the capacity to comprehend patterns within data and generate entirely new examples of text, images and even video (Bain, 2023).

Because of its ability to create new content, the fashion industry is integrating its technology into nearly all of its processes in some way, from design and product descriptions to product recommendations and 3D design (Mcdowell, 2023a).

Table 1 provides a few real-world examples of how AI is already being used in the industry.

Category How it works Example
Fashion Design
  • Transforms textual descriptions or uploaded images into illustrations
  • Adjusts these designs before production
  • Cala’s tool with DALL-E technology
  • Tommy Hilfiger’s AI-Assisted Design Collaboration with IBM and the Fashion Institute of Technology
  • Project Muze by Google and Zalando
Visual Content and Marketing Imagery
  • Generates advertising and marketing content using given parameters or inputs
  • Text, images and videos are common outputs
  • Stitch Fix’s AI visuals
  • Casablancas Spring/Summer 2023 campaign
  • Revolve’s AI-driven ad campaign
Copywriting
  • Generates copy based on keywords and instructions provided by the user
  • Streamlines the process of creating product descriptions, marketing emails and other written content
  • Adore Me AI optimization
  • Product descriptions for Search Engine Optimization (SEO)
Shopping Assistants
  • Utilizes natural language processing to interact with customers as chatbots
  • Offers product recommendations and provides information
  • Kering’s experimental KNXT platform
  • Luxury personal shopper powered by ChatGPT

 

AI in design
Generative AI has the power to revolutionize fashion design. Designers can harness AI image generators like DALL-E, Midjourney or Stable Diffusion to bring their creative visions to life.

Cala, a supply chain startup, was the first group to harness AI in the design creation process for fashion brands. In January 2023 it introduced a tool that allows users to describe their design ideas in text or upload images which AI will then transform into illustrations or realistic images. Users can then fine tune these designs before turning them into physical products. This tool marks a pioneering use of the DALL-E API in the fashion industry, enabling the creation of clothing, accessories, shoes and lifestyle products based on descriptions or images (OpenAI, 2022).

Apparel brands are also leveraging this technology. Tommy Hilfiger collaborated with IBM and the Fashion Institute of Technology on a project named Reimagine Retail. This initiative aimed to give retailers a competitive advantage in the speed of forecasting emerging design trends by analyzing a vast array of data from images and fabrics to colors (Saunders, 2019).

While generative AI empowers designers to explore new concepts and ideas rapidly by generating various design variations, there are limitations to the technology. Manual editing and adjustments are often necessary as AI cannot turn all concepts into finished products. Concerns regarding intellectual property may also arise as some AI-generated designs could be based on copyrighted work. Legal issues in this area are still evolving, prompting brands to involve their legal teams and establish guidelines (Bain, 2023).

AI in Copywriting: Efficiency and personalization
Generative AI tools are serving as valuable assistants to marketing teams, streamlining the writing process for product descriptions and marketing emails. Copywriters input keywords and instructions and AI generates copy that can be edited as needed, enabling brands to produce written content more efficiently.

The lingerie brand Adore Me has been using AI tools to optimize product descriptions for Search Engine Optimization (SEO) to make them more likely to appear at the top of search engine results (Mcdowell, 2023a). Adore Me and other brands using AI this way report dozens of hours in time savings.

Using AI’s potential to personalize content at a one-to-one level requires businesses to have structured first-party data and robust data privacy measures (Bain, 2023). For now, human oversight is still required, and web teams will likely need to make adjustments to established workflows in order to incorporate AI.

AI-enhanced visual content for fashion marketing
Generative AI is also being applied to create visual marketing content.
Stitch Fix uses AI to curate personalized clothing recommendations for customers and is exploring how it could use DALL-E 2 to visualize garments tailored to individual preferences for color, fabric and style (Davenport & Mittal, 2022).

French fashion house Casablanca Paris is also implementing AI. It collaborated with the British photographer and AI artist Luke Nugent for its Spring / Summer 2023 campaign. The AI-generated images blended dreamlike backdrops with cutting edge technology.

Fashion brands can benefit from reduced production times, cost savings and increased creative freedom by using AI-driven innovations to develop visual assets for marketing and ad campaigns. However, ensuring that AI-generated images accurately represent products can be tricky as the output may differ from the original product photos (Bain, 2023; Mcdowell, 2023a).

AI Chatbots: Transforming the shopping experience
Many retailers are also using generative AI as online shopping assistants, commonly known as chatbots. These chatbots use natural language processing to understand and respond to customer questions or even make personalized product recommendations (Zeng et al., 2023). For instance, within Kering’s experimental KNXT platform, a luxury personal shopper powered by ChatGPT provides tailored recommendations and insights to users based on specific contexts (Mcdowell, 2023b).

Despite these advantages, chatbot technology still has room for improvement. It may struggle to suggest the right products due to inventory constraints or provide somewhat generic styling suggestions. However these chatbots are a work in progress, and companies are confident that their AI tools’ language capabilities will continue to improve as they gather more data and user feedback.

As the fashion industry evolves, generative AI-driven chatbots have the potential to revolutionize the way customers interact with brands, offering increasingly personalized and efficient services.

A new industry standard
Businesses in the fashion, textile and apparel space can no longer be ambivalent or willfully ignorant about AI. They must do the research and reflection needed to develop a clear organizational stance on AI or risk getting left behind.

Organizational strategies for AI need to go beyond looking at the future trajectory of AI. Executives must set up clear objectives around how to integrate the technology into their workflows.

The customer base of each brand will be central to a successful AI strategy. This means understanding both their attitudes towards AI as well as their preferences and expectations.

Source:

Wilson College of Textiles, Yoo-Won Olivia Min and B. Ellie Jin

Empa researcher Edith Perret is developing special fibers that can deliver drugs in a targeted manner. Image EMPA
01.07.2024

Medical Fibers with "Inner Values"

Medical products such as ointments or syringes reach their limits when it comes to delivering medication locally – and above all in a controlled manner over a longer period of time. Empa researchers are therefore developing polymer fibers that can deliver active ingredients precisely over the long term. These "liquid core fibers" contain drugs inside and can be processed into medical textiles.

Medical products such as ointments or syringes reach their limits when it comes to delivering medication locally – and above all in a controlled manner over a longer period of time. Empa researchers are therefore developing polymer fibers that can deliver active ingredients precisely over the long term. These "liquid core fibers" contain drugs inside and can be processed into medical textiles.

Treating a wound or an inflammation directly where it occurs has clear advantages: The active ingredient reaches its target immediately, and there are no negative side effects on uninvolved parts of the body. However, conventional local administration methods reach their limits when it comes to precisely dosing active ingredients over a longer period of time. As soon as an ointment leaves the tube or the injection fluid flows out of the syringe, it is almost impossible to control the amount of active ingredient. Edith Perret from Empa's Advanced Fibers laboratory in St. Gallen is therefore developing medical fibers with very special "inner values": The polymer fibers enclose a liquid core with therapeutic ingredients. The aim: medical products with special capabilities, e.g. surgical suture material, wound dressings and textile implants that can administer painkillers, antibiotics or insulin precisely over a longer period of time. Another aim is to achieve individual, patient-specific dosage of the drug in the sense of personalized medicine.

Biocompatible and tailor-made
A decisive factor that turns a conventional textile fiber into a medical product is the material of the fiber sheath. The team chose polycaprolactone (PCL), a biocompatible and biodegradable polymer that is already being used successfully in the medical field. The fiber sheath encloses the valuable substance, such as a painkiller or an antibacterial drug, and releases it over time. Using a unique pilot plant, the researchers produced PCL fibers with a continuous liquid core by means of melt spinning. In initial lab tests, stable and flexible liquid-core fibers were produced. What's more, the Empa team had already successfully demonstrated, together with a Swiss industrial partner, that this process not only works in the lab but also on an industrial scale.

The parameters according to which the medical fibers release an enclosed agent were first investigated using fluorescent model substances and then with various drugs. "Small molecules such as the painkiller ibuprofen move gradually through the structure of the outer sheath," says Edith Perret. Larger molecules, on the other hand, are released at the two ends of the fibers.

Precisely controllable and effective in the long term
“Thanks to a variety of parameters, the properties of the medical fibers can be precisely controlled," explains the Empa researcher. After extensive analyses using fluorescence spectroscopy, X-ray technology and electron microscopy, the researchers were able to demonstrate, for instance, the influence of the sheath thickness and crystal structure of the sheath material on the release rate of the drugs from the liquid core fibers.

Depending on the active ingredient, the manufacturing process can also be adapted: Active ingredients that are insensitive to high temperatures during melt spinning can be integrated directly into the core of the fibers in a continuous process. For temperature-sensitive drugs, on the other hand, the team was able to optimize the process so that a placeholder initially fills the liquid core, which is replaced later on by the sensitive active ingredient.

One of the advantages of liquid core fibers is the ability to release the active ingredient from a reservoir over a longer period of time. This opens up a wide range of possible applications. With diameters of 50 to 200 micrometers, the fibers are large enough to be woven or knitted into robust textiles, for example. However, the medical fibers could also be guided inside the body to deliver hormones such as insulin, says Perret. Another advantage: Fibers that have released their medication can be refilled. The range of active ingredients that can be administered easily, conveniently and precisely using liquid core fibers is large. In addition to painkillers, anti-inflammatory drugs, antibiotics and even lifestyle preparations are conceivable.

In a next step, the researchers want to equip surgical suture material with antimicrobial properties. The new process will be used to fill various liquid core materials with antibiotics in order to suture tissue during an operation in such a way that wound germs have no chance of causing an infection. Empa researcher Perret is also convinced that future collaboration with clinical partners will form the basis for further innovative clinical applications.

Aiming for clinical partnerships
Advancing a new technology? Identifying innovative applications? Empa researcher Edith Perret is looking for interested clinicians who recognize the potential of drug delivery via liquid core fibers and want to become active in this field.

 

Source:

Dr. Andrea Six, EMPA

Biofibers made from gelatin in a rainbow of colors. © Utility Research Lab
25.06.2024

Designers make dissolvable textiles from gelatin

Introducing the fashion of the future: a T-shirt you can wear a few times, then, when you get bored with it, dissolve and recycle to make a new shirt.

Researchers at the ATLAS Institute at the CU Boulder are now one step closer to that goal. In a new study, the team of engineers and designers developed a DIY machine that spins textile fibers made of materials like sustainably sourced gelatin. The group’s “biofibers” feel a bit like flax fiber and dissolve in hot water in minutes to an hour.

The team, led by Eldy Lázaro Vásquez, a doctoral student in the ATLAS Institute, presented its findings in May at the CHI Conference on Human Factors in Computing Systems in Honolulu.

“When you don’t want these textiles anymore, you can dissolve them and recycle the gelatin to make more fibers,” said Michael Rivera, a co-author of the new research and assistant professor in the ATLAS Institute and Department of Computer Science.

Introducing the fashion of the future: a T-shirt you can wear a few times, then, when you get bored with it, dissolve and recycle to make a new shirt.

Researchers at the ATLAS Institute at the CU Boulder are now one step closer to that goal. In a new study, the team of engineers and designers developed a DIY machine that spins textile fibers made of materials like sustainably sourced gelatin. The group’s “biofibers” feel a bit like flax fiber and dissolve in hot water in minutes to an hour.

The team, led by Eldy Lázaro Vásquez, a doctoral student in the ATLAS Institute, presented its findings in May at the CHI Conference on Human Factors in Computing Systems in Honolulu.

“When you don’t want these textiles anymore, you can dissolve them and recycle the gelatin to make more fibers,” said Michael Rivera, a co-author of the new research and assistant professor in the ATLAS Institute and Department of Computer Science.

The study tackles a growing problem around the world: In 2018 alone, people in the United States added more than 11 million tons of textiles to landfills, according to the Environmental Protection Agency—nearly 8% of all municipal solid waste produced that year.

The researchers envision a different path for fashion.

Their machine is small enough to fit on a desk and cost just $560 to build. Lázaro Vásquez hopes the device will help designers around the world experiment with making their own biofibers.

“You could customize fibers with the strength and elasticity you want, the color you want,” she said. “With this kind of prototyping machine, anyone can make fibers. You don’t need the big machines that are only in university chemistry departments.”

Spinning threads
The study arrives as fashionistas, roboticists and more are embracing a trend known as “smart textiles.” Levi’s Trucker Jacket with Jacquard by Google, for example, looks like a denim coat but includes sensors that can connect to your smartphone.

But such clothing of the future comes with a downside, Rivera said:

“That jacket isn't really recyclable. It's difficult to separate the denim from the copper yarns and the electronics.”

To imagine a new way of making clothes, the team started with gelatin. This springy protein is common in the bones of many animals, including pigs and cows. Every year, meat producers throw away large volumes of gelatin that doesn’t meet requirements for cosmetics or food products like Jell-O. (Lázaro Vásquez bought her own gelatin, which comes as a powder, from a local butcher shop.)

She and her colleagues decided to turn that waste into wearable treasure.

The group’s machine uses a plastic syringe to heat up and squeeze out droplets of a liquid gelatin mixture. Two sets of rollers in the machine then tug on the gelatin, stretching it out into long, skinny fibers—not unlike a spider spinning a web from silk. In the process, the fibers also pass through liquid baths where the researchers can introduce bio-based dyes or other additives to the material. Adding a little bit of genipin, an extract from fruit, for example, makes the fibers stronger.

Other co-authors of the research included Mirela Alistar and Laura Devendorf, both assistant professors in ATLAS.

Dissolving duds
Lázaro Vásquez said designers may be able to do anything they can imagine with these sorts of textiles.

As a proof of concept, the researchers made small textile sensors out of gelatin fibers and cotton and conductive yarns, similar to the makeup of a Jacquard jacket. The team then submerged these patches in warm water. The gelatin dissolved, releasing the yarns for easy recycling and reuse.

Designers could tweak the chemistry of the fibers to make them a little more resilient, Lázaro Vásquez said—you wouldn’t want your jacket to disappear in the rain. They could also play around with spinning similar fibers from other natural ingredients. Those materials include chitin, a component of crab shells, or agar-agar, which comes from algae.

“We’re trying to think about the whole lifecycle of our textiles,” Lázaro Vásquez said. “That begins with where the material is coming from. Can we get it from something that normally goes to waste?”

More information:
Gelatin biofibres DIY
Source:

University of Colorado Boulder | Daniel Strain